Company archive

Marcus & Millichap data breach history

Breached tracks public reports, source links, affected counts, exposed data types, and updates for Marcus & Millichap.

Breaches

Known affected

1,837,078

Latest report

5/4/2026

Data types

Common exposed data

Email addresses Names Phone numbers Addresses Employers Job titles

Tracked reports

canonical

High9d ago

Marcus & Millichap

Marcus & Millichap, a commercial real estate brokerage, had data on approximately 1.8 million individuals exposed after being named as an alleged victim of the ShinyHunters hacking group in April 2026.

Email addressesNamesPhone numbers+3 more

1.8M